CENACE Power Markets Data

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Since its inception on January 1, 2017, CENACE has been publishing data similar to Independent System Operators (ISO) within the United States. But what does this data look like? What analysis can be done?

Prices

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LMP prices in Mexico vary depending on the system. Baja California (BCA) is the northernmost region in Mexico and is connected to the California ISO via two paths: Otay Mesa to Tijuana and Imperial Valley to La Rosita. Because of its connection to US markets, this system sees the lowest LMPs; prices must remain competitive with pricing in CAISO.

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The above heat map shows relative zonal prices within the Sistema Interconectado Nacional system (SIN). In May, four zones saw declines in average real-time LMP prices: Reynosa, Nogales, Hermosillo, and Guaymas, all located in the northern third of the country (blue areas). Zones in the southern Peninsular region experienced price increases (red areas).

The highest prices in CENACE are observable in the Baja California Sur (BCS) independent system (not shown above). This is an isolated system on the southern half of the Baja Peninsula. Due to a lack of interconnection with other areas, prices in BCS aren’t forced to remain competitive.

Ancillary Prices

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Real-time demand response in CENACE has seen quite a bit of variability in prices between the eight ancillary regions. In the SIN system, regulation prices have consistently been the highest of all ancillary products. However, in the Baja regions, regulation prices align more closely with other products such as 10-minute Spinning and Non-Synchronous Reserve.

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Load

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All regions saw a noticeable drop in load for the month of April before jumping back up in May. The Occidental region consistently experiences the highest periods of demand while demand remains lowest in the Baja peninsula. In May, total load in Noreste outpaced load in Central for the first time.

Generation

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While the highest average load is seen in Occidental, the highest average generation occurs in Noreste. Monthly generation figures change little month-over-month for most regions in CENACE, though the highest generating regions (Oriental, Occidental, and Noreste) have experienced some variability.

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